About the role#
This Mechanical Engineering Co-op position is based in Hollis, New Hampshire. You will work under the guidance of an Engineering Manager to apply your academic knowledge to real-world product development. This role focuses on concept generation, design for manufacturing, prototyping, and technical documentation. You will gain experience across the full design process while building a personal portfolio of your work.
What you'll do#
- Work on medical products including home health wearables, therapy systems, and surgical robotics.
- Conceptualize and develop product architectures, parts, mechanisms, and assemblies.
- Create designs using SolidWorks, analysis software, and lab equipment.
- Assemble and test prototypes to refine designs and demonstrate performance.
- Collaborate with industrial design, user interface, human factors, software, and electrical teams.
- Participate in multidisciplinary brainstorming sessions.
- Build electro-mechanical assemblies to help develop process flows and identify potential failure risks.
- Develop assembly and test tools while documenting procedures and results.
- Present design value, tradeoffs, and recommendations to clients and internal teams.
What you'll need#
- Current enrollment in a 4-year accredited university studying Mechanical, Biomedical, Manufacturing, or Systems Engineering.
- A minimum 3.0 GPA.
- Status as a 2nd or 3rd year co-op student with applicable mechanical design experience.
- Proficiency in SolidWorks to resolve mechanical challenges and manage CAD databases.
- Experience with engineering simulation software such as MathCAD, Excel, FEA, or CFD.
- Basic machine shop skills, including experience with mills and lathes.
- Experience designing, running, and documenting experiments in a lab setting.
- Strong communication skills and the ability to produce freehand sketches.
- Experience with electromechanical products, medical devices, or tolerance analysis is a plus.
Location & details#
- Location: Hollis, New Hampshire.
- Terms available: Winter 2027 and Summer 2027.
- Modality: Full-time, on-site.
- Compensation: This is a paid position.
- Note: Sponsorship is not available for this role.
About Flex
Flex is a manufacturing partner that provides design, build, and logistics services for various brands. The company operates across sectors including medical, automotive, and consumer digital electronics. It maintains a global presence with headquarters in Austin, Texas. The firm employs over 56,000 people and functions as a public company.
How to get in at Flex
Securing an internship at Flex requires speed because high-volume manufacturing firms often receive a large number of applications. Intern Insider sends an instant alert the moment a role matching your target is published, so you apply among the first. Early applicants get seen before the pile grows, which helps you stand out in a crowded field. You can also use Intern Insider to surface the recruiters behind these roles. Reaching out directly to ask about the position or a referral materially improves response rates compared to waiting in a queue.



